Agent Skills: progressive-delivery

Progressive delivery on Kubernetes — canary and blue-green deployments via Argo Rollouts, plus environment-to-environment promotion via Kargo. USE WHEN implementing canary releases, blue-green deployments, traffic shifting between revisions, metric-gated promotions, AnalysisTemplate/AnalysisRun design, Argo Rollouts CRDs, or Kargo freight/warehouse/stage promotion pipelines, multi-stage promotion across dev/staging/prod, ArgoCD+Kargo integration. Rollouts handles WHICH revision serves traffic; Kargo handles WHICH revision is in which environment. Use both together when you need both deployment strategy AND multi-environment promotion.